I have worn Birkenstock Boston Clogs for about 10 years. I still have the original pair but they are not looking good enough for work anymore. I replaced them about 2 years ago and have already had the recent pair re-soled. I went to put them on today and the whole back section of cork sole has split. I need something like the Birkenstock insole as it helps hold my arches and helps keep my back aligned while standing on hard tile all day in a classroom. I had bad sciatica many years ago and narrowing disks in my lower back. Since wearing the Birkenstocks I have no more back issues usually. Any suggestions for a good all day shoe that could give me similar support but maybe more durable?